What dies are compatible with the Redding 73270 heat-treated steel neck sizing bushing?

The Redding 73270 bushing features standard external dimensions of a 1/2 inch outer diameter and 3/8 inch length. It is fully compatible with all standard Redding bushing-style sizing dies, including Type S Neck Sizing Dies, Type S Full-Length Sizing Dies, and Competition Neck Sizing Dies.

How do I determine if the 0.270 inch size is correct for my specific cartridge brass?

The 0.270 inch dimension refers to the outside diameter of the sized case neck rather than the bullet caliber. The standard formula to find your correct bushing size is to measure the outside neck diameter of a loaded round with a seated bullet and subtract 0.001 to 0.002 inches.

Are there any electrical compliance or certification requirements for this product in Australia?

No. As a purely mechanical handloading component made of heat-treated steel, the Redding 73270 does not require 240V compatibility, SAA approval, or RCM certification for use within Australia.

When should I consider choosing a Titanium Nitride (TiN) coated bushing over this standard steel model?

While the precision heat-treated steel model features a hand-polished internal bore with a Rockwell C hardness of 60-62, reloaders processing very high volumes of brass may prefer the TiN coated Model 76270. The titanium nitride coating further reduces surface friction and minimizes the effort required during high-volume sizing sessions.

Neck Sizing Bushing - Redding 73270

The Redding .270 Heat-Treated Steel Neck Sizing Bushing (MPN: 73270) is a precision handloading tool designed to size the outside neck diameter of cartridge cases to exactly 0.270 inches. Built with a self-centering, floating design, this bushing integrates directly into Redding Type S Neck Sizing Dies, Type S Full-Length Sizing Dies, and Competition Neck Sizing Dies. It allows reloaders to establish precise case neck tension without over-working the brass, extending cartridge case life and improving shot-to-shot consistency.

Key Features

Precision Hardened Steel: Heat-treated to a surface hardness of Rockwell C 60–62 for wear resistance and dimensional stability under repeated press strokes.
Hand-Polished Interior: Features a hand-polished inner bore to reduce surface friction, minimize sizing effort, and prevent brass galling when used with lightly lubricated case necks.
Standardized External Dimensions: Machined to an industry-standard 1/2-inch outer diameter and 3/8-inch length, enabling universal interchangeability across all Redding bushing-style dies.
Clear Size Markings: Stamped directly with "270" on the bushing body for immediate visual identification on the reloading bench.
Self-Centering Operation: Floats inside compatible dies to self-align over the cartridge neck during the sizing cycle.

Specifications

Manufacturer Part Number (MPN): 73270
Inner Sizing Diameter: 0.270 inches
Outer Diameter: 1/2 inch (0.500 inches)
Length: 3/8 inch (0.375 inches)
Material: Heat-treated steel
Hardness Rating: Rockwell C 60–62
Die Compatibility: Redding Type S Neck Dies, Type S Full-Length Dies, and Competition Bushing Dies
Weight: Approximately 0.02 kg to 0.03 kg

Who is the Redding .270 Heat-Treated Steel Neck Sizing Bushing for?

Precision rifle reloaders — requiring an exact 0.270-inch inside diameter to precisely control neck tension on loaded cartridges without over-working the brass.
Benchrest competitors — benefiting from the Rockwell C 60–62 heat-treated steel construction and hand-polished bore of this neck sizing bushing to maintain uniform dimensional tolerances across competitive shot strings.
Long-range hunters — utilizing standard Redding Type S dies that accept 1/2-inch outer diameter and 3/8-inch length bushings to size cartridge brass for consistent bullet release and tight field groupings.

Less suitable for: High-volume reloaders seeking to size large batches of brass without applying case neck lubricant; a Titanium Nitride (TiN) coated sizing bushing fits that situation better due to its lower surface friction.

SKU	RD41766LP
Model #	73270
Brand	Redding
Shipping Weight	1.0000kg

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Redding 73270 Steel Neck Sizing Bushing 270 Calibre

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